According to the introduction of the plot, Yinxin is the master of Nanliang. He had fought against the new master of Fengyun Order before and was seriously injured. At that time, the master of Fengyun Order was masked and only had one pair of eyes. Outside, Yinxin was very familiar with those eyes. When he saw Xing'er, he felt that Xing'er's eyes were the same as those of Lord Fengyun, so he suspected that Xing'er was Chu Qiao, Lord Fengyun, so he tried to see Xing'er. There was no Bianhua flower on Xing'er's back to confirm whether Xing'er was the Lord of Fengyun. However, there was no Bianhua flower on Xing'er's back, and his martial arts skills were different from before, so he thought he had made a mistake.

His hidden secret is Xiao Yu's right-hand man in the TV series "The Legend of Chu Qiao", who once pursued the amnesiac Chu Qiao. The main means of attack are throwing concealed weapons. There are poisonous smoke bombs hidden in the folding fans, which can instantly cover the battlefield in poisonous smoke. So what is the ending of Chu Qiao's Legend of Hidden Heart! On the surface, Hidden Heart is a servant, but his true identity is actually a killer, and he died in the end.